Search for Highly Absorbable Negative Cosmic-Ray Particles at Sea Level
- 15 October 1953
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 92 (2), 406-411
- https://doi.org/10.1103/PhysRev.92.406
Abstract
A search has been made at sea level for negative cosmic-ray particles (other than electrons) which are absorbed in 147 g/ of lead and which have momenta greater than that of mu mesons of this range. The momentum and sign of the charge of those particles stopping in the absorber were determined by means of a counter controlled cloud chamber operated in a magnetic field. During 1400 hours of operation no negatively charged particle in the momentum interval 0.4-1.7 Bev/c was recorded as stopping in the absorber. This result has been used to show that the intensity of negative particles with strong nuclear interaction cannot amount to as much as 0.05 percent of the total intensity of negative particles in this momentum interval. It has been shown that the local production of negative mu mesons in the momentum interval 0.5-1.0 Bev/c is less than 8.8× particle/( steradian hr meter). A lower limit of 6.9× g/ of lead has been set on the removal path length of mu mesons in the momentum interval 0.4-1.6 Bev/c.
Keywords
This publication has 10 references indexed in Scilit:
- Interpretation of Cosmic-Ray Measurements Far UndergroundReviews of Modern Physics, 1952
- Proton-Meson Analysis of the Cosmic Radiation at 3.4 KilometersPhysical Review B, 1951
- Observations on the Interactions of -Mesons UndergroundProceedings of the Physical Society. Section A, 1951
- Nuclear Disintegrations Induced by-MesonsPhysical Review B, 1951
- On the Proton Component of the Vertical Cosmic-Ray Beam at Sea LevelProceedings of the Physical Society. Section A, 1951
- An Experiment on the Anomalous Scattering of-Mesons by NucleonsPhysical Review B, 1951
- Magnetic Cloud-Chamber Analysis of Cosmic Rays at 3.4 KilometersPhysical Review B, 1950
- XXXVII. Nuclear transmutations produced by cosmic-ray particles of great energy.—Part IV. The distribution in energy, and the secondary interactions of the particles emitted from starsJournal of Computers in Education, 1950
- Interpretation of Cosmic-Ray PhenomenaReviews of Modern Physics, 1948
- The Discharge Mechanism of Fast G-M Counters from the Deadtime ExperimentPhysical Review B, 1942